2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56082We derive a generalized Skyrme-Faddeev action as the effective action of QCD in the low energy limit. Our result demonstrates the existence of a mass gap in QCD which triggers the confinement of color.4 page, no figureHigh Energy Physics - TheoryHigh Energy Physics - LatticeMathematical PhysicsNuclear Theorytext